Alpha Eta Rho (ΑΗΡ) is a coed international professional college aviation fraternity.

[4] Earl W. Hill, a professor of aviation at the University of Southern California, established Alpha Eta Rho on April 10, 1929.

[7] Along with Hill, the fraternity's founding members were John Bonadiman, Joe Burchman, Adam E. Diehl, Dr. Rudolph Hirschberg, Richard Mogle, and Walter Sykes.

[5] Charles Lindbergh later served as the fraternity's first vice president and Dr. John Franklin Bruce Carruthers was its national historian.

[14] The fraternity's activities included meetings with guest speakers, weekly luncheons, trips to airplane factories and related industries, and cross-country flights.

[18] As the last letter in the word air, Rho stands for density and solar distance, symbolizing the strong bonds of the fraternity's members despite their travels through the aviation industry.

[18] The Alpha Eta Rho badge is shaped like a five-cylinder radial airplane engine with a diagonal propeller on top.

The day-to-day operations of the fraternity are run by Benjamin O'Brien, the organization's Chief Executive Officer.